Henry ryder



nitzh 1am germ-1 Hire.

MANUFACTURE OF PARAFFINE CANDLES.

SPECIFICATION- TO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

' Be it known that I, HENRY RYDER, of New Bedford, in the county ofBristol, and State of Massachusetts. have made a new and usefulinvention having reference to the manufacturing of parafline candles;and I dt hereby declare the same to be fully described in the followingspecification:

This invention may be said to be an improvement on the invention whichconstitutes the subject of th patent, No: 22,921, dated February 8,1859; such patent having been granted to Horatio Leonard and myself andsince beenwholly vested in me.

The process covered by such patent consisted in the employment of aheated mould, and water and air bath: at specified temperatures; suchbeing in manner and for the purpose as described in the specification ofsucl patent.

I have discovered that the air bath used in effecting the gradualcooling or annealing of the parafiine o2 parafiine candle, after theapplication of the surface chilling bath to the mould, may be dispensedwith, am the process of annealing be carried on much more expeditiouslyand to better advantage by allowing a smal stream of cool or iced waterto flow into the. chilling bath and a like quantity of its water toescape from it.

The small influx of water into the. mould chilling bath and consequentefflux therefrom of water of dimin ished temperaturet, will graduallycool and set the inner portions of the candles withoutinjuriou slyefi'ectin; their surfaces.

A workman soon is enabled to discover, by a little practice, the properamount of water to be let into thl mould bath. This he can do byinserting his finger in the efltluent current, the temperature of whichwill enabl him to judge of that of the water of the'bath. The saving inlabor and time by the improved process of cooling the candles, over thatwhich involves the employment of an air bath, is at least twenty-fiveper cent; a matte of much importance to the manufacturer.

I would remark, that the water of the surface chilling bath while inaction on the mould should be kept a about freezing temperature, thatis, about thirty-two degrees Fahrenheit.

After the proper chilling of the surfaces of the paraifine may have beeneffected, the annealing part of th process, or the gradual reduction ofthe temperature-of the unchilled portions of the parafiine or candles,is t be carried on, and for this purpose a small stream of water, atabout freezing temperature, is to be allowed t1 flow into the bath, alike amount of water, at higher temperature, being allowed to escapefrom the bath. 7

I do not herein claim the patented process of cooling the parafline inthe moulds, s'uch involving the use 0 a water chilling bath and thesubsequent employment of an air bath, as set forth in the patent hereinbefor mentioned.

With my improvement I am not only able to dispense with the airannealing bath, but the transportation o the candle moulds from thewater chilling bath to such air bath.

' What, therefore, I claim as my invention, is-

My improved process, as described, for efi'ecting the annealing orgradual cooling of parafiine. in a mould such consisting in thesubjection of the mould containing the melted parafine, to a chillingbath of water, c about freezing temperature, and subsequently allowingwater, of about such temperature, to flow into, an warmer water to flowout of the chilling bath as explained.

HENRY RYDER.

fWitn esses:

R. H. EDDY, I SAMUEL N. PIPER.

